condition mean min max Sterile Leaflet 0.0 0.0 0.0 Fertile Leaflet with Sori 2.1856066666666667 0.0 6.55682 Primary Rachis 0.0 0.0 0.0 Secondary Rachis 0.129804 0.0 0.353563 Petiole 0.0 0.0 0.0 Crozier 0.0 0.0 0.0 Root 0.0183357 0.0 0.0550071